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The Effect Of Natural Elicitors And Cold Storage Period On Quality Improvement Of Uae Date Palm Fruits (Phoenix Dactylifera, Cv. Barhi), Fatima Yaaqoub Yousef Al Shaibani Nov 2021

The Effect Of Natural Elicitors And Cold Storage Period On Quality Improvement Of Uae Date Palm Fruits (Phoenix Dactylifera, Cv. Barhi), Fatima Yaaqoub Yousef Al Shaibani

Theses

Date palm is an agricultural crop of economic importance in most Arab countries. Among the different varieties of date palms grown in the United Arab Emirates, the Barhi variety is extremely popular and is often consumed at the bisr stage (first edible stage). However, the major challenge for this fruit at bisr stage is to maintain its quality over a long period after harvest and during marketing. The objective of this study was to evaluate the synergistic effect of preharvest spraying with a natural elicitor, namely chitosan (Ch) 1%, alone and in combination with salicylic acid (SA) 2 mM and …


Preparation And Evaluation Of Crocetin-Coated Biodegradable Polymer On Top Of Magnetite Nanoparticles For Their Anticancer Effects, Sulafa Saeed Abdelhalim Nov 2021

Preparation And Evaluation Of Crocetin-Coated Biodegradable Polymer On Top Of Magnetite Nanoparticles For Their Anticancer Effects, Sulafa Saeed Abdelhalim

Theses

Liver cancer is still one of the leading causes of cancer-related deaths worldwide. This is due to many reasons including lack of effective drugs, late diagnosis of this type of cancer due to the overlapping of symptoms with many other liver diseases, and lack of effective screening tests. Targeted drug delivery systems offer many promising advantages compared to conventional chemotherapy. Targeted delivery will mitigate the bad side effects of chemotherapy such as drug resistance, low therapeutic value since the drug mostly will be administered through an IV affecting healthy and cancer cells alike, and that leads us to an important …


Improving Phytoremediation Of Oil Polluted Soil In The Uae Using Acc Deaminase Producing Bacteria Under Arid Conditions, Maitha Mubarak Almansoori Nov 2021

Improving Phytoremediation Of Oil Polluted Soil In The Uae Using Acc Deaminase Producing Bacteria Under Arid Conditions, Maitha Mubarak Almansoori

Theses

Many 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase-producing and oil-degrading rhizosphere actinobacteria were isolated from oil-contaminated soils in the United Arab Emirates. These actinobacterial isolates were further selected based on their ability to solubilize phosphorus, to produce siderophores, and to produce plant growth regulators (PGRs) including auxins and polyamines. The ability of the most-promising isolate #20 (Streptomyces sp.) to promote the growth of the hyper-accumulating plants “Bermuda grass” in soil polluted with Light Arabian Crude Oil (LACO) was evaluated under greenhouse conditions. Under controlled greenhouse conditions, the application of the strongest Streptomyces sp. #20 which exhibited the maximum production of ACC deaminase and …


Studying Neurotoxic Effects Of Three Synthetic Insecticides And Two Herbal Infusions On The Nervous System Of The Fruit Fly Drosophila Melanogaster, Sara Khamis Obaid Hamarain Al Dhaheri Nov 2021

Studying Neurotoxic Effects Of Three Synthetic Insecticides And Two Herbal Infusions On The Nervous System Of The Fruit Fly Drosophila Melanogaster, Sara Khamis Obaid Hamarain Al Dhaheri

Theses

Pesticides applied on plants and animals can reach the human diet once they enter food chains. Insecticides are neurotoxic agents; they have the potential of causing damage to the nervous system in people. The damage could induce or promote neurodegenerative diseases such as the Parkinson’s and Alzheimer's. It is well-documented that the exposure to the insecticide chlorpyrifos (CPF) stimulate the Parkinson disease in humans and experimental animals. Thus, this research project will study effect of three synthetic insecticides pirimicarb, tefluthrin, and CPF on the nervous system of Drosophila melanogaster as a model organism. In addition, the project will evaluate the …


Attenuated Bacteria Potentiate The Outcome Of Immunotherapy With Pd-L1 Blockade In A Pre-Clinical Model Of Colorectal Cancer, Besan Haytham Mohammad Al-Saafeen Nov 2021

Attenuated Bacteria Potentiate The Outcome Of Immunotherapy With Pd-L1 Blockade In A Pre-Clinical Model Of Colorectal Cancer, Besan Haytham Mohammad Al-Saafeen

Theses

After more than a century of investigation, it has become evident that cancer development and progression occur at the expense of a dysfunctional immune system. This realization has ushered cancer immunotherapy as a new modality of treatment. In the last decade, the use of immune checkpoint inhibitors to treat cancer patients resulted in unprecedented and durable clinical benefits. However, the response rate in many cancers remains rather modest, with colorectal cancer being at the lower end of the spectrum. Previous work from our laboratory demonstrated the efficacy of using attenuated bacteria as immunomodulatory anti-cancer agents. The current study investigated the …


Immobilization Of Lipase On Metal Organic Frameworks For Biodiesel Production, Reem L Husam Safwan Shoma Nov 2021

Immobilization Of Lipase On Metal Organic Frameworks For Biodiesel Production, Reem L Husam Safwan Shoma

Theses

For the economical application of enzymatic processes in biodiesel production, lipase enzyme has to be used in immobilized form to allow easy retention and reuse. The main challenges facing the industrialization of the enzymatic process are the high mass transfer resistance, the tendency to adsorb the by-product glycerol onto the support matrix and poor operational stability. These problems can be solved by a good selection of supports of favourable surface characteristics and pore sizes. In that regard, increasing interest has recently been in Metal-Organic Frameworks (MOFs) as a new kind of porous support for enzyme immobilization. Physical adsorption, which is …


An Examination Of The Relationship Between Eating Competence And Biopsychosocial Factors In Adults With Metabolic Syndrome, Jenna Hickey Oct 2021

An Examination Of The Relationship Between Eating Competence And Biopsychosocial Factors In Adults With Metabolic Syndrome, Jenna Hickey

Theses

Background: An association between eating competence and bioclinical factors for healthy adults has been identified. However, no research has been conducted into the association of ecSI 2.0TM scores and biopsychosocial measures for adults with metabolic syndrome. Purpose: To examine the congruence between eating competence and biopsychosocial measures at baseline and post-intervention in individuals with metabolic syndrome. Methods: Self report surveys administered to participants: Satter Eating Competence Inventory (ecSI 2.0TM), Short Form Health Survey Mental Health and Vitality scales(SF-36 MH and VT), Perceived Stress Scale (PSS), Patient Health Questionnaire – 8 (PHQ-8). Bioclinical measures: HDL cholesterol, triglycerides, blood glucose, BMI, and …


Can Providing Positive Interactions With Snakes Change A Person’S Perception Of Dangerous Wildlife Interactions?, Bethany Walker Oct 2021

Can Providing Positive Interactions With Snakes Change A Person’S Perception Of Dangerous Wildlife Interactions?, Bethany Walker

Theses

Due to a long co-evolutionary history between placental mammals and reptiles, primates demonstrate aversive responses to snakes. In humans, this can result in ophidiophobia, or the fear of snakes which can arise due to cultural backgrounds, traumatic experiences, or fear instilled by others. However, these reptiles fill essential roles in ecosystems. Conservation and outreach efforts are important to help our population understand snakes’ role in our lives and the state’s broader biodiversity. Negative experiences or preconceptions about snakes can make this message hard to share with the public. Educators can help prevent intentional harm to some of these organisms through …


South To South: Connections In The Ordinary, Fostering Empathy By Encouraging Travel Through Design, Bethany Wetzel Oct 2021

South To South: Connections In The Ordinary, Fostering Empathy By Encouraging Travel Through Design, Bethany Wetzel

Theses

South 2 South: Connections in the Ordinary, explores similarities between South Korea and Alabama through a designed sensory experience that allows users to engage in cross-cultural information in an inviting and familiar way with the use of recognizable motifs in order to reduce fear, foster empathy, and encourage travel. The creation of South 2 South was informed by research on travel fears, empathy, and transnational relations between the two regions. South 2 South helps facilitate the beginnings of these interactions by presenting new cultural information directly to the more insular communities of northeast Alabama. My hope is that South …


Sensory Evaluation Of Camel Milk, Reem Amer Al Kaabi Oct 2021

Sensory Evaluation Of Camel Milk, Reem Amer Al Kaabi

Theses

Camel milk is one of the most important sources of nutrients for humans in numerous arid and semiarid environments. Consumer acceptability and sensory analysis are decisive for the commercialization of camel milk. It is essential to understand the sensory qualities of camel milk because of its unfamiliarity and its typical sensory profile, which is different from that of bovine milk. This study aimed to evaluate a trained panel qualitative description of sensory characteristics as well as consumer acceptability and attitude towards pasteurized non-flavoured, flavoured, and camel milk powders. In the consumer acceptability test, samples were evaluated based on acceptability with …


Assessing The Impacts Of Sea Level Rise On Land-Use Across The North-Eastern Parts Of The Uae Coastal Areas Using Remote Sensing Technology, Khawla Ali Mohammed Albedwawi Oct 2021

Assessing The Impacts Of Sea Level Rise On Land-Use Across The North-Eastern Parts Of The Uae Coastal Areas Using Remote Sensing Technology, Khawla Ali Mohammed Albedwawi

Theses

The consequences of global warming and climate change would result in a considerable rise in sea level. Other larger consequences on coastal lands, agriculture, buildings, and facilities are expected. The goal of this study is to assess the effects of Sea-Level Rise (SLR) on various land uses in the UAE's North-Eastern coastal districts (Fujairah and Kalba cities). Four SLR scenarios will be developed through the QGIS platform and the Landsat images that have been acquired from the USGS Earth Explorer. The area will be observed over 20 years (2000 – 2020). The second goal of this study is to develop …


Assessment Of Heavy Metals In Sharks From The Arabian Gulf Waters, The United Arab Emirates, Noor Alali Oct 2021

Assessment Of Heavy Metals In Sharks From The Arabian Gulf Waters, The United Arab Emirates, Noor Alali

Theses

Metals occur naturally in the environment however anthropogenic activities have contributed to their increase in the marine ecosystem. As elements have the ability to bioaccumulate, biomagnify and transfer between biological compartments throughout the food web, they pose a great threat to living biota. The characteristics of the Arabian Gulf make it a harsh environment for marine species especially when multiple stressors are acting together. Rhizoprionodon acutus (milk shark) and Carcharhinus sorrah (spot-tail shark) are essential compartments of the Arabian Gulf ecosystem. As they are found up in the food chain and considered a predator species they are under the threat …


The Red Palm Weevil In The Uae: Morphological Diversity And Rnai-Mediated Gene Silencing Of Two Cuticle-Related Genes, Safa Hashem Mohammed Musaed Oct 2021

The Red Palm Weevil In The Uae: Morphological Diversity And Rnai-Mediated Gene Silencing Of Two Cuticle-Related Genes, Safa Hashem Mohammed Musaed

Theses

Red Palm Weevil (RPW), Rhynchophorus ferrugineus (Coleoptera: Curculionidae), threatens palm trees worldwide. A better understanding of this insect can help with designing an adequate management strategy. This study aimed to a better understand the morphological diversity of RPW and examined RNAi-mediated gene silencing of two cuticle-related genes, vestigial (vg) gene, and Laccase (Lac2) gene by injecting the last larval stage with double-stranded RNA (dsRNA). For the morphological diversity study, adults of RPW were collected and classified by their prothoracic spots. Additional morphological characters were measured such as Pronotum Length (PL), Pronotum Width (PW), Elytra Length (EL), Elytra Width (EW), and …


Role Of Limonene In An Experimental Model Of Rotenone Induced Parkinson’S Disease, Lujain Mohamad Bader Eddin Oct 2021

Role Of Limonene In An Experimental Model Of Rotenone Induced Parkinson’S Disease, Lujain Mohamad Bader Eddin

Theses

Parkinson's disease (PD) is one of the prevalent neurodegenerative diseases in elderly population. The symptoms of PD often begin with motor and cognitive impairment that are attributed to the dopaminergic neurons degeneration. Rotenone (ROT) is a naturally derived pesticide that is used in agriculture to control pests. It is a neurotoxin well-established for use in resembling PD symptoms in research. Limonene (LMN) is a plant derived monoterpene extracted from citrus peel with a wide range of therapeutic effects. Due to the shortage in available therapeutic agents that can cure or halt the progressive degeneration of PD, the main aim of …


Tuberculosis Screening And Education In The Urban Public School District, Nikolaos S. Moraros Sep 2021

Tuberculosis Screening And Education In The Urban Public School District, Nikolaos S. Moraros

Theses

Tuberculosis (TB) is the world's deadliest curable communicable infectious disease. The eradication of TB is a significantly important intractable global public health challenge for health agencies at all levels. Global migration, cultural-socioeconomic factors and increase of multidrug-resistance tuberculosis (MDR-TB) affect the epidemiology of TB in the United States and other countries worldwide. Studies have shown that increase in TB knowledge and understanding contributes to early TB screenings/diagnosis, interventions and treatments, result in reducing MDR-TB, rates of TB transmissions, relapse, morbidity and mortality. The purpose of this project is: (1) to develop a TB screening risk assessment protocol for the Urban …


Multivariate Statistical Analysis Applied To The Forensic Analysis Of Synthetic Fibers, Abdulrahman Aljanaahi Sep 2021

Multivariate Statistical Analysis Applied To The Forensic Analysis Of Synthetic Fibers, Abdulrahman Aljanaahi

Theses

Textile fibers obtained from crime scenes can provide trace evidence to help solve criminal cases through forensic science. Examining the samples involves the use of different analytical procedures to determine associations between different fabric fragments. The current study explored multivariate statistical methods applied in synthetic fiber forensic science comparisons. The literature review of the current research identified various multivariate approaches such as Principal Component Analysis (PCA) and Partial Least Square Discriminant Analysis (PLS-DA) to analyze spectroscopic and chromatographic data. The capstone project used Fourier Transform Infrared (FT-IR) Spectroscopy instrumental methods for the analysis of standard synthetic fibers. Afterwards, multivariate data …


Impact Of Sodium Dichloroacetate Alone And In Combination Therapies On Lung Tumor Growth And Metastasis, Aya Mudhafar A. Al-Azawi Sep 2021

Impact Of Sodium Dichloroacetate Alone And In Combination Therapies On Lung Tumor Growth And Metastasis, Aya Mudhafar A. Al-Azawi

Theses

Lung cancer is the second most common form of cancer with the highest mortality rate worldwide in 2020 despite the advances in targeted- and immuno-therapies. Metabolic reprogramming has been recognized as an essential emerging cancer hallmark in which altered metabolic pathways represent an attractive therapeutic target. Sodium Dichloroacetate (DCA), a pyruvate dehydrogenase kinase (PDK) inhibitor, effect has been investigated in various tumors. Building on the already published data, this pre-clinical study aims to explore the anticancer potential of DCA in lung cancer alone and in combination with chemo- and targeted therapies using two non-small cell lung cancer (NSCLC) cell lines …


Drug Releasing Hydrogels For Opioid Use Disorder, Kaytlyn M. Crowe Aug 2021

Drug Releasing Hydrogels For Opioid Use Disorder, Kaytlyn M. Crowe

Theses

Ease of access to prescription opioids and the strength of synthetic opioids have contributed to the rise in over use disorders, overdose, and death rates during the opioid epidemic. The current overdose standard of care, rescue NLX (NLX), is a competitive antagonist to the μ-opioid receptor but has a relatively short period of action compared to opioid agonists, especially synthetic agonists. Rises in the abuse of these synthetic and semi-synthetic agents in recent years have shown the weaknesses of rescue NLX, as it can leave overdose patients vulnerable to renarcotization and precipitated withdrawal. To prevent both from occurring, we developed …


Subgroups Of Patients Undergoing Chemotherapy With Distinct Cognitive Fatigue And Evening Physical Fatigue Profiles, Lisa Morse Aug 2021

Subgroups Of Patients Undergoing Chemotherapy With Distinct Cognitive Fatigue And Evening Physical Fatigue Profiles, Lisa Morse

Theses

Purpose was to model cognitive fatigue and evening physical fatigue together to determine subgroups of patients with distinct cognitive fatigue AND evening physical fatigue profiles. Once these profiles were identified, differences among the subgroups in demographic and clinical characteristics, co-occurring symptoms, and quality of life outcomes were evaluated.


Ageing Performance Of Biodegradable Pla For Durable Applications, Rohan Pujari Aug 2021

Ageing Performance Of Biodegradable Pla For Durable Applications, Rohan Pujari

Theses

The durability of 2 commercially available injection mold grades and one extrusion grade of polylactic acid (PLA) was assessed. Here, the materials were exposed to elevated temperatures/humidity for a period of several weeks. Moisture absorption, molecular weight change, mechanical properties, crystallinity changes, and microscopic imaging were all monitored at regular intervals throughout the course of the combined heat and humidity ageing study. The conditions for the ageing study were set at 60°C and 45% relative humidity and all three PLA grades showed a significant increase in crystallinity and conversely reduced mechanical performance over the 68-day ageing period. Microscopic images of …


Conservation Of The Ambystoma Jeffersonianum Complex, Morgan Motherwell Aug 2021

Conservation Of The Ambystoma Jeffersonianum Complex, Morgan Motherwell

Theses

The Great Lakes region is home to the diverse genus Ambystoma, including the Blue Spotted Salamander (Ambystoma laterale) and Jefferson’s Salamander (Ambystoma jeffersonianum). These two species are relevant to conservation efforts because of unique hybrid populations. This hybridization creates offspring populations that are morphologically similar to the parental species. The hybrid populations are primarily all female lineages and are known as the Ambystoma jeffersonianum complex. Conservation interest in this hybrid complex stems from the fact that hybrid populations are not taxonomically recognized as separate species and therefore are not protected under the Endangered Species Act. To assess the contribution of …


Assessment And Deployment Of Genetic Tools For North American River Otters (Lontra Canadensis), Kelsey Lawton Aug 2021

Assessment And Deployment Of Genetic Tools For North American River Otters (Lontra Canadensis), Kelsey Lawton

Theses

North American River Otters (Lontra canadensis) once thrived in large numbers in most wetlands of North America. However, due to human pressures such as trapping, habitat loss and pollution, these carnivorous mammals have decreased in numbers significantly in the last 100+ years, becoming extirpated in many traditionally inhabited areas. The use of genetic data from molecular techniques (PCR, DNA sequencing) can guide the identification and management of populations used for relocations to better maintain genetic diversity in both wild and captive otter populations and help inform the Association of Zoos and Aquariums (AZA) breeding programs. Management organizations are concerned with …


Effects Of Wetland Design And Invasive Species Removal On Carbon And Microbial Communities In Restored Wetlands, Benjamin Hamilton Aug 2021

Effects Of Wetland Design And Invasive Species Removal On Carbon And Microbial Communities In Restored Wetlands, Benjamin Hamilton

Theses

Multiple wetland ecosystem services such as carbon sequestration and nutrient removal are influenced by microbial communities and dissolved organic matter (DOM). I examined DOM composition, carbon metabolism, and microbial communities in three created wetlands, which had distinct hydrology, vegetation and antecedent land-use. To study differences between wetlands, porewater and soil were collected from each wetland in spring, summer, and fall of 2018. DOM was analyzed using NMR spectroscopy and fluorescence spectrometry, soil microbial community composition was examined using 16S ribosomal sequencing, and CO2 and CH4 production rates were measured in anaerobic soil incubations. Structural DOM composition varied significantly between the …


The Influence Of Herbivory On Macrophyte Community Structure And Nitrogen Retention In Created Wetlands, Evan Squier Aug 2021

The Influence Of Herbivory On Macrophyte Community Structure And Nitrogen Retention In Created Wetlands, Evan Squier

Theses

Wetlands are frequently created to mitigate the loss of natural wetlands due to commercial expansion. However, wetland ecosystem function is determined by complex abiotic and biotic interactions that are not well understood in natural wetlands, and even less so in created wetlands. This lack of understanding may lead to shortcomings in meeting desired restoration outcomes. Key abiotic drivers in wetlands include hydrology and nutrient availability, while herbivory provides both direct and indirect controls on plant communities and biogeochemical cycling. I hypothesized that by decreasing emergent plant biomass and shifting plant community structure to favor submerged plants, large grazers such as …


Comparative Dna Degradation Automation For Identifinders, Jennifer Pfaff Aug 2021

Comparative Dna Degradation Automation For Identifinders, Jennifer Pfaff

Theses

The degradation of DNA in forensic genetic genealogy can hinder timely results in victim or perpetrator identification. Identification of an unidentified victim, a “Doe”, involves analyzing the degraded DNA against reference genomes. Organizations like the DNA Doe Project and Identifinders currently manually compares the genomes in a spreadsheet with data input slowing down the investigative process. I propose a program to automate the data input and comparison to increase the speed at which Identifinders can continue their research into identifying victims. Comparative DNA Degradation Automation (CDDA) automates the process of creating a simulated degraded DNA profile in less than a …


Coplanar Electrowetting-Induced Droplet Ejection For 3d Digital Microfluidic Devices, Marcette Sapphira Greyson Aug 2021

Coplanar Electrowetting-Induced Droplet Ejection For 3d Digital Microfluidic Devices, Marcette Sapphira Greyson

Theses

Digital microfluidics is a promising fluid processing technology used in lab-on-achip applications to perform chemical synthesis, particle filtration, immunoassays, and other biological protocols. Traditional digital microfluidic (DMF) devices consist of a 2D grid of coated electrodes over which droplets are manipulated. Selective activation of the electrodes results in an electrowetting effect that deforms the droplets and can move them around the electrode grid. More recently, electrowetting on dielectric has also been used to eject droplets and transfer them between opposing surfaces. This has given rise to new 3D DMF devices capable of more sophisticated routing patterns that can minimize crosscontamination …


Carbon Soil Amendment For Promotion Of Native Species In Created Emergent Freshwater Wetlands, Taylor E. Williams Aug 2021

Carbon Soil Amendment For Promotion Of Native Species In Created Emergent Freshwater Wetlands, Taylor E. Williams

Theses

Wetlands created or restored to replace natural wetland often fail to achieve functional equivalence and delivery of similar ecosystem services, especially with regard to plant community structure. In these young ecosystems, native emergent plants may not successfully compete with invasive species that are more rapid colonizers and capable of taking advantage of disturbed systems. This susceptibility to invasion and lack of resilience is exacerbated under conditions of high nutrient availability or extreme variations in weather as a result of climate change. Management of invasive plants in wetlands typically involves costly chemical and mechanical control measures, necessitating development of cost-effective and …


Concretization Of Depression, Jing Zhou Aug 2021

Concretization Of Depression, Jing Zhou

Theses

Depression is a common mental disorder, but many people cannot understand the pain experienced by depression patients. Even after having a certain understanding of depression, it is difficult for us as normal people to empathize with the true inner feelings of depression patients. However, some people not only fail to understand the depressed patients, but they also speak slanderously and scold these depressive patients for their overly emotional actions. For these reasons, I want to show the true feelings of depression patients or the pain experienced as a depression patient through motion graphics. Motion graphic is an effective way to …


Athena: A Digital Educational Experience For Visual Learners, Adrianna Petrus Aug 2021

Athena: A Digital Educational Experience For Visual Learners, Adrianna Petrus

Theses

Athena is a design system for an online learning experience that uses motion graphics and information design along with succinct narratives and engaging web page browsing to help visual learners comprehend complex information. This system will leverage several theories, such as Pictorial Superiority Effect, which suggests vision is the most powerful pathway to the brain,(1) as well as Dual Coding Theory, explaining that two senses stimulated at once will increase comprehension.(2) Conveying content like “Marketing Ethics” in an effective way can be difficult. Visual education can bridge the pathway to these topics in an interactive way that incorporates animation, audio, …


Examining The Tradeoffs Of Green Infrastructure For Stormwater Management: Ecosystem Services Vs. Environmental And Human Health Impacts, Ciara M. Heister Aug 2021

Examining The Tradeoffs Of Green Infrastructure For Stormwater Management: Ecosystem Services Vs. Environmental And Human Health Impacts, Ciara M. Heister

Theses

As green stormwater infrastructure (GI) practices become more widely implemented, it is important to develop a full understanding of both the positive and negative ways that GI practices may influence environmental and human health. Additionally, as climate change leads to shifts in precipitation patterns, it is necessary to understand how the resulting changes in stormwater runoff volume, soil moisture, and vegetation species composition will impact both biogeochemical cycling and the production of ecosystem services and disservices. The overall objective of this study was to compare green stormwater infrastructure practices by weighing the tradeoffs that exist between negative impacts such as …